Last seen: Jan 13, 2026
OK thats a pity it would have been good to see if/how defrost changed as a result of switching off night shift and overnight there would have been ple...
My Vaillant was defrosting every 45-60mins overnight (chart shows FT). As you can see it doesnt fully recover from the defrosts because noise reducti...
Something odd about this diagram; the refrigerant is moving in the wrong direction for defrost - warm refrigerant from the compressor should be headin...
Thats a bit suspicious. Some (older?) heat pumps apparently defrost on a timed cycle rather than on demand. I wonder if these are in that category (...
In short, like much on FB, this is nonsense. The amount of heat lost by the radiators to the room (which is what you care about) depends on the aver...
It will be good then to see some plots tomorrow morning to compare! I'm beginning to wonder from your description if it's delaying starting defrost...
I have one fancoil in an otherwise all radiator system. I am working on adding diy fan assistance to another radiator. The latter is for cooling onl...
I can't comment on the defrost algorithm or numbers. If the heat pump is not recovering temperature after defrost, I would turn off night shift. Be...
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